CN214255873U - Integral injection molding insulation framework suitable for stator core and stator core - Google Patents

Abstract

The utility model provides an insulating skeleton of whole moulding plastics suitable for stator core, include: integrally injection-molding an insulating framework body, wherein the integrally injection-molded insulating framework body comprises a framework groove; the integral injection molding insulation framework body is arranged on the inner side of the stator core; the framework groove is arranged on the inner side of the integral injection molding insulation framework body; the shapes of the framework slots and the stator iron core are consistent; the integral injection molding insulation framework body is injected on each surface of a hole groove of the stator core. The utility model solves the assembly problem caused by improper matching of the insulating framework and the stator core; the operation time required by the assembly of the frameworks is avoided, the generation of a joint surface caused by splicing of the two frameworks is avoided, flash and burr are avoided, and the insulation reliability in the stator core slot is improved.

Description

Integral injection molding insulation framework suitable for stator core and stator core

Technical Field

The utility model relates to a motor manufacturing technology field especially relates to one kind, especially relates to an insulating skeleton of whole moulding plastics and stator core suitable for stator core.

Background

The rotary transformer is a sensor for precisely transmitting and measuring angles, is mainly applied to motor driving systems of industrial servo and electric automobiles, and provides angle (rotating speed) signals for a driving controller. The principle and manner of manufacture of the resolver is similar to that of a conventional motor. In the manufacturing stage, especially in manual manufacturing, insulation in the core slot and the end part is performed in a mode of padding insulating paper and adding an insulating end plate, the method is convenient, but the manual manufacturing is not suitable for batch large-scale production. After the machine winding is introduced, the insulation in the slot needs to be replaced by an insulation framework produced by a mold. The conventional insulating framework is divided into an upper part and a lower part which are independent, and the two end faces of the iron core are respectively embedded and spliced, so that the effects of insulation in the slot and end insulation are realized.

The existing splicing type insulation framework can realize certain large-scale production, but has the corresponding problems: firstly, the framework needs to be embedded into the iron core groove, so that the framework and the iron core have certain requirements on matching, the framework is difficult to assemble if the framework is too tight, and the framework is easy to fall off if the framework is too loose; secondly, the two frameworks are spliced to form a joint surface instead of a whole, so that flash and burr caused by injection molding are easily generated on the joint surfaces of the two halves, an insulating paint film on the surface of an enameled wire is damaged, and the insulation effect between the winding phases and between the turns is influenced; thirdly, the joint surfaces of the two frameworks can have different sizes, so that a height difference (step) exists between the two surfaces to influence the insulation effect; fourthly, although the assembly of the framework is relatively convenient, certain operation time still exists, a process is needed, and the potential risk of not-in-place assembly still exists.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing an insulating skeleton of whole moulding plastics and stator core suitable for stator core.

According to the utility model provides a pair of whole insulating skeleton of moulding plastics suitable for stator core, include: integrally injection-molding an insulating framework body, wherein the integrally injection-molded insulating framework body comprises a framework groove; the integral injection molding insulation framework body is arranged on the inner side of the stator core; the framework groove is arranged on the inner side of the integral injection molding insulation framework body; the shapes of the framework slots and the stator iron core are consistent; the integral injection molding insulation framework body is injected on each surface of a hole groove of the stator core.

Preferably, the whole injection molding insulation framework body further comprises a framework end plate, the framework end plate is arranged on the outer side of the whole injection molding insulation framework body, and the framework end plate and the framework groove are injected together to insulate the end portion of the framework.

Preferably, the whole insulating skeleton body of moulding plastics still includes the terminal, and the terminal setting is on the extension of the whole insulating skeleton body one end of moulding plastics that is applicable to stator core.

Preferably, the insulating skeleton body of wholly moulding plastics still includes the lug, and the lug setting is at the epitaxial outermost end of upside of the insulating skeleton body of wholly moulding plastics.

Preferably, the spacing distance between both lateral sides of the frame slot is equal.

According to the utility model provides a pair of stator core contains foretell insulating skeleton of whole moulding plastics that is applicable to stator core.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an adopt the mode of injection mould preparation, make the insulating skeleton of independent fashioned plastics, solved traditional concatenation formula insulating skeleton and need imbed the iron core inslot to there is certain requirement to the cooperation of insulating skeleton and indisputable stator core, the tension then can be difficult to the assembly, crosses the technical problem that the pine then can drop easily.

2. The utility model discloses an adopt the mode of injection mould preparation, make the plastic insulation skeleton of independent shaping, solved traditional concatenation formula insulation skeleton and made both to have a faying face, produce the overlap burr that brings when moulding plastics easily on the faying face of two halves, destroy the insulating varnish film on enameled wire surface, influence the technical problem of the alternate and interturn insulation effect of winding.

3. The utility model discloses an adopt the mode of injection mould preparation, make the insulating skeleton of plastics of independent shaping, the faying face of having solved two skeletons of traditional concatenation formula insulating skeleton still can have the condition not of uniform size for there is difference in height (step) between these two faces, influences the technical problem of insulating effect.

4. The utility model discloses an adopt the mode of injection mould preparation, make the insulating skeleton of independent fashioned plastics, solved the operating time that traditional concatenation formula insulating skeleton assembly consumeed together, need one process to and the technical problem of the risk of latent assembly not in place.

5. The utility model discloses an adopt the mode of injection mould preparation, make the insulating skeleton of independent fashioned plastics for the reliability of inslot insulation obtains fine guarantee, has also saved man-hour and risk that the assembly brought simultaneously, and efficiency has also obtained the promotion.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the overall structure of a middle stator core and an integral injection-molded insulating framework of the present invention;

FIG. 2 is a schematic structural view of the integrated injection-molded insulating framework of the present invention;

FIG. 3 is a schematic view of a stator core with no frame injected;

fig. 4 is the schematic diagram of the processing mold for integrally molding the insulating framework on the stator core of the utility model.

In the figure:

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the utility model provides an insulating skeleton of whole moulding plastics suitable for stator core, including the insulating skeleton body 2 of whole moulding plastics, the insulating skeleton body 2 of whole moulding plastics includes skeleton groove 201, skeleton end plate 202, terminal 203 and lug 204.

The integral injection molding insulation framework body 2 is arranged on the inner side of the stator core 1; the framework groove 201 is arranged on the inner side of the integral injection molding insulation framework body 2; the shape of the framework slot 201 is consistent with that of the stator core 1; the integral injection molding insulation framework body 2 is injected on each surface of a hole slot of the stator core 1.

Further, the framework end plate 202 is disposed outside the integrally injection-molded insulating framework body 2, and the framework end plate 202 and the framework groove 201 are together injection-molded to perform an insulating function on the framework end. The terminal 203 is arranged on an extension section of one end of the integral injection molding insulation framework body suitable for the stator core. The lug 204 is arranged at the outermost end of the upper extension of the integral injection molding insulation framework body.

The utility model discloses aPreferred embodiment(s) of the inventionFor further explanation.

Based on the above embodiment, the spacing distance between both lateral sides of the skeleton groove 201 is equal.

Based on the above embodiments, the connection lug 204 is made of conductive copper material.

As shown in fig. 3 for the schematic diagram of the stator core of skeleton of not yet moulding plastics, as shown in fig. 4, through the utility model discloses in the processing mold of the insulating skeleton of integrative moulding plastics on stator core comes to wholly mould plastics stator core, slider 4 sets up on mould rack 3, and the skeleton texture includes: the stator core 1 is integrally wrapped inside the stator core 1, and has a groove formed in a shape identical to that of the stator core 1, and end insulating plates are formed at both ends of the stator core 1, and 6 terminal posts 203 for welding winding lead wires and 6 tabs 204 for leading out the lead wires are integrally connected, and the 6 lead wires of the resolver are welded to the winding after the winding is wound, and then lead wires for leading out an external circuit are further welded from the tab. The upper framework and the lower framework are connected into a whole and are completely matched with the shape of the hole groove of the stator core. The utility model solves the assembly problem caused by improper matching of the insulating framework and the stator core; the operation time required by the assembly of the frameworks is avoided, the generation of a joint surface caused by splicing of the two frameworks is avoided, flash and burr are avoided, and the insulation reliability in the stator core slot is improved.

The working principle is as follows:

the utility model discloses ensure with the help of the design of mould that insulating material can evenly and completely cover each surface in stator core's the hole inslot to form required skeleton appearance, finally make insulating skeleton mould plastics on the iron core completely, the two becomes an organic whole. The iron core is placed in an injection mold, the injection mold can be used for multiple pieces, namely, one set of mold is provided with a plurality of mold cavities for placing the stator iron core, two cavities are shown in one mold, as shown in figure 4, an upper mold and a lower mold are closed, and plastic molding is carried out under specified process parameters to form an integral body of the insulation framework and the stator iron core.

The utility model solves the assembly problem caused by improper matching of the insulating framework and the stator core; the operation time required by the assembly of the frameworks is avoided, the generation of a joint surface caused by splicing of the two frameworks is avoided, flash and burr are avoided, and the insulation reliability in the stator core slot is improved.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (5)

1. The utility model provides an insulating skeleton of whole moulding plastics suitable for stator core which characterized in that includes: the integral injection molding insulation framework body (2), wherein the integral injection molding insulation framework body (2) comprises a framework groove (201);

the integral injection molding insulation framework body (2) is arranged on the inner side of the stator core (1);

the framework groove (201) is arranged on the inner side of the integral injection molding insulation framework body (2);

the shape of the framework groove (201) is consistent with that of the stator core (1);

the integral injection molding insulation framework body (2) is injected on each surface of a hole groove of the stator core (1).

2. The integrally injection-molded insulating skeleton suitable for the stator core according to claim 1, wherein the integrally injection-molded insulating skeleton body (2) further comprises a skeleton end plate (202), the skeleton end plate (202) is arranged on the outer side of the integrally injection-molded insulating skeleton body (2), and the skeleton end plate (202) and the skeleton groove (201) are together injection-molded to insulate the skeleton end.

3. The integrally injection-molded insulation skeleton suitable for the stator core according to claim 1, wherein the integrally injection-molded insulation skeleton body (2) further comprises a binding post (203), and the binding post (203) is arranged on an extension section of one end of the integrally injection-molded insulation skeleton body (2) suitable for the stator core.

4. The integrally injection-molded insulating skeleton suitable for the stator core according to claim 1, wherein the integrally injection-molded insulating skeleton body (2) further comprises a lug (204), and the lug (204) is arranged at the outermost outer end of the upper extension of the integrally injection-molded insulating skeleton body (2).

5. A stator core comprising an integrally injection molded insulating skeleton as claimed in any one of claims 1 to 4 adapted for use in a stator core.

Images